1. a situation where one feels safe or at ease: "the trip is an attempt to take the students out of their comfort zone"
▪ a settled method of working that requires little effort and yields only barely acceptable results:"if you stay within your comfort zone you will never improve"
Psychological state in which a person feels at ease and in control of their environment
A comfort zone is a familiar psychological state where people are at ease and in control of their environment, experiencing low levels of anxiety and stress. Wikipedia
